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The contribution of cross modality to fatigue damage accumulation of structure subjected to random vibration

Zhu Xuewang,Liu Qinglin

Strategic Study of CAE 2008, Volume 10, Issue 10,   Pages 36-41

Abstract:

The contribution level of cross modality to vibration response of structureIn engineering vibration analysis' a system hypothesis with lightly damping and sparse modality isgenerally applied to solve approximately vibration response of structure where the contribution of crossRandom response is obtained by means of superposition methods and fatigue damage accumulation of structureunder random vibration is analysised with Miner's linear damage ruler.

Keywords： cross modality     random vibration     fatigue damage accumulation     random vibration response     modality superposition    

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Development and application of a random walk model of atmospheric diffusion in the emergency response

CHI Bing, LI Hong, FANG Dong

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 195-201 doi: 10.1007/s11708-007-0025-7

Abstract: concentration prediction is one of the main contents of radioactive consequence assessment for early emergency responseRandom characteristics of atmospheric diffusion itself was described, a random walk model of atmosphericdiffusion (Random Walk) was introduced and compared with the Lagrangian puff model (RIMPUFF) in theconcentrations calculated by the two models are quite close except that the plume area calculated by RandomThe random walk model for atmospheric diffusion can simulate the atmospheric diffusion in case of nuclear

Keywords： RODOS     concentration prediction     information     nuclear     RIMPUFF    

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Probability strength design of steam turbine blade and sensitivity analysis with respect to random parametersbased on response surface method

DUAN Wei

Frontiers in Energy 2008, Volume 2, Issue 1,   Pages 107-115 doi: 10.1007/s11708-008-0018-1

Abstract: variables while the maximum deflection and maximum equivalent stress are output random variables.input variables, is applied to evaluate how much the output parameters are influenced by the randomThe scatter plots of structural responses with respect to the random input variables are illustratedto analyze how to change the input random variables to improve the reliability of the blade.The results show that combination of the finite element method, the response surface method and Monte

Keywords： Probability sensitivity     sensitivity analysis     number     cross-section     statistical    

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Effects of Engineering Factors on Structure Response in Vibration Test

Chen Youling,Zhu Xuewang,Zhu Changchun

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 62-65

Abstract:

Effects of engineering factors such as fixture boundaries, assembly connections, dynamic vibrationloads position and level, etc., on response of complicated structure in vibration test are investigatedIt is shown that evaluations on the response of structure in service are applicable using vibration test

Keywords： complicated structure     vibration test     structure response     engineering factor    

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Seismic response reduction of a three-story building by an MR grease damper

Tomoki SAKURAI, Shin MORISHITA

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 2,   Pages 224-233 doi: 10.1007/s11465-017-0413-6

Abstract:

This paper describes an application of magneto-rheological (MR) grease dampers as seismic dampers for a three-story steel structure. MR fluid is widely known as a smart material with rheological properties that can be varied by magnetic field strength. This material has been applied to various types of devices, such as dampers, clutches, and engine mounts. However, the ferromagnetic particles dispersed in MR fluid settle out of the suspension after a certain interval because of the density difference between the particles and their carrier fluid. To overcome this defect, we developed a new type of controllable working fluid using grease as the carrier of magnetic particles. MR grease was introduced into a cylindrical damper, and the seismic performance of the damper was subsequently studied via numerical analysis. The analysis results of the MR grease damper were compared with those of other seismic dampers. We confirmed that the MR grease damper is an effective seismic damper.

Keywords： MR grease damper     seismic damper     vibration control     structural response     FEM analysis    

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Evaluation of transmissibility for a class of nonlinear passive vibration isolators

Z. K. PENG, Z. Q. LANG, G. MENG

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 401-409 doi: 10.1007/s11465-012-0349-9

Abstract:

In this study, the concept of Output Frequency Response Functions (OFRFs) is applied to representcharacteristic parameters might affect the force and displacement transmissibility is built for the vibrationoutputs of the nonlinear isolators, and the introduction of a nonlinear anti-symmetric damping into vibrationThese conclusions are of significant importance in the analysis and design of the nonlinear vibration

Keywords： nonlinear vibration     volterra series     Output Frequency Response Functions (OFRFs)     nonlinear damping     vibration    

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Wind-induced vibration control of Hefei TV tower with fluid viscous damper

Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 249-254 doi: 10.1007/s11709-009-0038-x

Abstract: Firstly, according to the random vibration theory, the effect of fluctuating wind on the tower can bemodeled as a 19-dimensional correlated random process, and the wind-induced vibration analysis of theFinally, a dynamic model is proposed to study the wind-induced vibration control analysis using viscousfluid dampers, and the optimal damping coefficient is obtained regarding the wind-induced response ofAnalysis results show that the maximum peak response of the tower under dynamic wind load is far beyond

Keywords： high-rise structure     wind-induced response     fluid viscous damper     vibration control    

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Hydroelastic model experimental study on large scale high arch dam vibration by discharge flow

Ma Bin,Lian Jijian,Yang Min

Strategic Study of CAE 2008, Volume 10, Issue 11,   Pages 23-29

Abstract: Overall test and analysis of the modals and vibration response of dam and appurtenant structure underThe equivalent load is determined by inverse analysis method for flow induced vibration, then the dynamicresponse of the dam is obtained and influence of flow-induced vibration is assessed.

Keywords： Laxiwa arch dam     hydroelastic model     flow-induced vibration     vibration response     inverse analysis    

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Prediction of vibration response of powerhouse structures based on LS-SVM optimized by PSO

Lian Jijian,He Longjun,Wang Haijun

Strategic Study of CAE 2011, Volume 13, Issue 12,   Pages 45-50

Abstract:

The vibration of powerhouse structures is mainly induced by hydraulicsprototype observation data of Ertan Hydropower Station, the paper analyzes the coupling effect between vibrationof units and powerhouse,and then the vibration response forecasting model of the powerhouse is built

Keywords： powerhouse     coupled vibration     particle swarm optimization algorithm     least squares support vector machines     response prediction    

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The study of forced vibration for threetower suspension bridge under moving loads

Feng Zhaoxiang,Chen Liang and Miu Changqing

Strategic Study of CAE 2012, Volume 14, Issue 5,   Pages 80-84

Abstract: finite element model are analyzed and then the effects of different moving speeds and loads on dynamic responseThe response of force and displacement of three-tower twospan continuous suspension bridge under simply

Keywords： dynamic characteristics     forced vibration     response     load amplification factor    

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Wind resistance challenges and fundamental research on long-span bridges

Xiang Haifan,Ge Yaojun

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 8-21

Abstract: of long span bridges, including flutter instability and control of suspension bridges, wind induced vibrationof cable-stayed bridges and control of wind-rain induced cable vibration, vortex shedding vibrationspan have high enough critical flutter speed, but the main aerodynamic concern is rain-wind induced vibrationExcept one example of vortex-induced vibration, long-span arch bridges have no wind resistance problems

Keywords： suspension bridge     cable stayed bridge     arch bridge     flutter instability     buffeting response     vortexinduced vibration     wind-rain induced vibration    

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Fatigue Life Prediction of Long-Life Pavement Using Frequency-Domain Analysis

Wei Baoli,Guo Chengchao and Cui Can

Strategic Study of CAE 2017, Volume 19, Issue 6,   Pages 80-85 doi: 10.15302/J-SSCAE-2017.06.012

Abstract: Using the vehicle-road coupled vibration system model, the random vibration between the vehicle and roadIn this paper, it is proposed that the random power spectral density of the vehicle-road coupling vibration

Keywords： long-life pavement     fatigue life prediction     random vibration     power spectral density    

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Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 114-120 doi: 10.1007/s11709-014-0267-5

Abstract: The accurate and efficient simulation of random heterogeneous media is important in the framework ofIt is usually assumed that the morphology of a random microstructure can be described as a non-Gaussianrandom field that is completely defined by its multivariate distribution.A particular kind of non-Gaussian random fields with great practical importance is that of translationmedia with emphasis on level-cut random fields which are a special case of translation fields.

Keywords： microstructure     random fields     level sets     shape recovery     two-phase media    

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Probabilistic analysis of secant piles with random geometric imperfections

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 682-695 doi: 10.1007/s11709-021-0703-2

Abstract: By taking the pile diameter D, inclination angle β, and azimuth angle α as random

Keywords： secant piles     ultrasonic cross-hole testing     probabilistic analysis     reliability-based design     random    

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Application of random set method in a deep excavation: based on a case study in Tehran cemented alluvium

Arash SEKHAVATIAN, Asskar Janalizadeh CHOOBBASTI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 66-80 doi: 10.1007/s11709-018-0461-y

Abstract: deep excavation in layers of cemented coarse grained soil located in Tehran, Iran by non-deterministic Random

Keywords： uncertainty     reliability analysis     deep excavations     random set method     finite difference method    

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Title Author Date Type Operation

The contribution of cross modality to fatigue damage accumulation of structure subjected to random vibration

Zhu Xuewang,Liu Qinglin

Journal Article

Development and application of a random walk model of atmospheric diffusion in the emergency response

CHI Bing, LI Hong, FANG Dong

Journal Article

Probability strength design of steam turbine blade and sensitivity analysis with respect to random parametersbased on response surface method

DUAN Wei

Journal Article

Effects of Engineering Factors on Structure Response in Vibration Test

Chen Youling,Zhu Xuewang,Zhu Changchun

Journal Article

Seismic response reduction of a three-story building by an MR grease damper

Tomoki SAKURAI, Shin MORISHITA

Journal Article

Evaluation of transmissibility for a class of nonlinear passive vibration isolators

Z. K. PENG, Z. Q. LANG, G. MENG

Journal Article

Wind-induced vibration control of Hefei TV tower with fluid viscous damper

Zhiqiang ZHANG , Aiqun LI , Jianping HE , Jianlei WANG ,

Journal Article

Hydroelastic model experimental study on large scale high arch dam vibration by discharge flow

Ma Bin,Lian Jijian,Yang Min

Journal Article

Prediction of vibration response of powerhouse structures based on LS-SVM optimized by PSO

Lian Jijian,He Longjun,Wang Haijun

Journal Article

The study of forced vibration for threetower suspension bridge under moving loads

Feng Zhaoxiang,Chen Liang and Miu Changqing

Journal Article

Wind resistance challenges and fundamental research on long-span bridges

Xiang Haifan,Ge Yaojun

Journal Article

Fatigue Life Prediction of Long-Life Pavement Using Frequency-Domain Analysis

Wei Baoli,Guo Chengchao and Cui Can

Journal Article

Simulation of heterogeneous two-phase media using random fields and level sets

George STEFANOU

Journal Article

Probabilistic analysis of secant piles with random geometric imperfections

Journal Article

Application of random set method in a deep excavation: based on a case study in Tehran cemented alluvium

Arash SEKHAVATIAN, Asskar Janalizadeh CHOOBBASTI

Journal Article